RS-422/485 Multiport Serial PCI Card
17
8. Application
Wiring
8.1 RS-485 (Transmitter is controlled
automatically by ATTA
TM
Hardware)
Please note that the RS-422/485 PCI Card supports optional
auto echo mode. If enabled, when the data was sent to the
RS-485 transmitter, the exact data will be sent back to its
receiver simultaneously. The application program can use the
echoed data to check if the RS-485 bus was currently in
collission condition and need to be resent
RXD+(485)
RXD-(485)
DATA(+)
DATA(-)
2-wire twisted pair cable
RS-422/485 PCI Card
RS-485 Device
RS-422/485 Multiport Serial PCI Card
2
2.
Package Check List
Before installing the RS-422/485 multiport serial PCI card to your
computer, please make sure the following accessories are well
packed in the box
：
□
Multiport serial PCI Card x 1
□
Optional Octopus-Cable (only for 4-port and 8-port models)
□
Driver CD × 1
□
Installation Guide × 1
（
Mark the check box to help you check it
）
